Former "Bachelor" winner Shayne Lamas -- the chick who married the guy behind TheDirty.com just hours after meeting him last year -- is PREGNANT ... TMZ has learned.
Sources close to the fetus tell us ... Lamas is already several months into the pregnancy ... and Nik Richie is indeed the father.
In fact, the couple isn't letting the bun in the oven slow down their travel plans -- they're co-hosting a party at Pure in Vegas on Friday.
As TMZ first reported, Lamas and Richie tied the knot in a whirlwind Vegas ceremony after partying together for a few hours in Sin City last year.
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